50 identical circular plates are placed one above other to form a solid cylinder. for each plate diameter 21 cm and thickness 1.5cm. find curved surface area of the cylinder formed. and volume of the cylinder formed
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Answered by
2
Answer:
CSA.=4950 cm²
VOLUME=25987.5cm³
Step-by-step explanation:
Given:
No. Of plates = 50
If diameter is 21 cm then radius is 10.5cm(diameter/2)
MEASURES OF NEW CYLINDER FORMED:
RADIUS: 10.5cm
HEIGHT : 75cm {no.of plates*height of one plate}
Therefore,
CSA.= 2pie rh
= 2* (22/7)* 10.5* 75
= 4950 cm²
VOLUME : Pie r²h
= (22/7) * 10.5*10.5*75
= 25987.5cm³
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Answer:
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